How to Make Blackberry Jam

With its sweet, rich flavor and appealing purple color, blackberry jam is a favorite to make and eat. Use wild, fresh, or thawed blackberries to make a classic jam that you cook on the stove with sugar, spice, and pectin. Or skip the cooking process to make a fresh-tasting jam that sets up in the freezer with the help of a little instant pectin.

EditClassic Blackberry Jam
9 cups (1.3 kg) of blackberries

4 cups (800 g) of granulated sugar

2 teaspoons (4 g) of cinnamon

1 teaspoon (2 g) of freshly grated nutmeg

1 lemon, juiced and zested

1 3-ounce (88.5 ml) packet of liquid pectin

Makes 6 8-ounce (226 g) jars

EditNo-Cook Freezer Jam (Low-Sugar)
8 cups (1.1 kg) of blackberries

2 cups (400 g) of granulated sugar

6 tablespoons (54 g) of instant fruit pectin

Makes 6 8-ounce (226 g) jars

EditClassic Blackberry Jam
Sterilize the storage jars. Since this recipe makes 6 8-ounce (226 g) jars, you’ll need to boil or run 6 half-pint jars through the dishwasher. If you prefer, sterilize 3 pint jars instead. Sterilize the jars no more than 1 hour before filling them, so they stay warm.[1]If you plan on canning the jam, you’ll also need to sterilize the bands and warm the lids.

Mash 9 cups (1.3 kg) of blackberries. Put the blackberries into a large bowl and use a potato masher or the back of a wooden spoon to crush them. Keep mashing until the berries release their juice. You should get about 6 cups (1.3 kg) of blackberry pulp.[2]If you’re using wild or fresh blackberries, rinse them well before mashing them.

You can leave the seeds in the mashed berries or push the pulp through a fine mesh strainer if you want seedless jam.

Heat the blackberry pulp and sugar over medium heat. Scoop the blackberry pulp into a large, non-reactive pot, such as a nonstick, stainless steel, or enameled cast iron pot, and pour in 4 cups (800 g) of granulated sugar. Turn the burner to medium and stir to combine the mixture.[3]
Stir in the cinnamon, nutmeg, and lemon. Add 2 teaspoons (4 g) of cinnamon and 1 teaspoon (2 g) of freshly grated nutmeg. Then zest 1 lemon and juice it. Stir the zest and juice into the pot with the spices and berry mixture.[4]Use an organic lemon since these aren’t coated in wax and they aren’t sprayed with pesticides.

Bring the mixture to a boil and stir in the pectin. Turn the burner up to medium-high and heat the mixture until it begins to bubble. You’ll need to stir it so it doesn’t boil over the side of the pot. Then stir in a 3-ounce (88.5 ml) packet of liquid pectin until it’s incorporated.The pectin will thicken the jam so it sets.

Boil the jam for 5 minutes to activate the pectin. Keep the burner at medium-high heat so the jam begins to boil again. Stir frequently as the jam boils for 5 full minutes. It should begin to thicken as moisture evaporates from the pot.[5]To test if your jam will set, dip a large metal spoon into the jam and lift it back out. Turn the spoon to the side so the syrupy jam runs off. The mixture should bead together and slide off the spoon in a single sheet.

Fill the jars with blackberry jam to eat or can. Carefully fill each of your sterilized jars with the hot blackberry jam. Leave of headspace at the top of the jar so the jam won’t leak out of the jars if you plan on processing them. At this point, you can refrigerate the jam for up to 3 weeks or can them so you can store them for up to 1 year.[6]To can the jam, process the jars in a water bath for 10 minutes.

EditNo-Cook Freezer Jam
Sterilize the storage containers. If you want to use half-pint jars, get out 6 glass or plastic containers. If you want larger jars, get out 3 pint jars to use. Boil or run the containers through the dishwasher 1 hour before filling them.[7]Check that the plastic containers are food-safe and ensure that the glass containers are freezer-safe.

Crush 8 cups (1.1 kg) of blackberries. Put 1 cup (144 g) of ripe blackberries into a large bowl and use a potato masher to crush them. Continue to add the blackberries 1 cup (144 g) at a time and crush them after each addition. You should end up with about 5 cups (1.1 kg) of crushed blackberries.[8]Rinse the blackberries before crushing them if you’re using fresh or wild blackberries.

If you prefer, put the berries in a food processor and pulse them until they’re crushed with a few chunks visible.

Mix the sugar with instant pectin in a separate bowl. Pour 2 cups (400 g) of granulated sugar into a mixing bowl and add 6 tablespoons (54 g) of instant fruit pectin. Whisk or stir the sugared pectin for at least 30 seconds so the pectin is incorporated.[9]You can substitute a no-calorie sweetener, such as Splenda.

Stir in the crushed blackberries for 3 minutes. Spoon 5 cups (1.1 kg) of the crushed blackberries into the bowl with the sugared pectin. Stir or whisk the mixture for 3 minutes so the pectin combines with the blackberries.[10]Continue to stir for the full 3 minutes or the jam may not set properly.

Transfer the jam to containers and let them sit for 30 minutes. Place the sterilized containers on your work surface and carefully ladle the blackberry jam into them. Fill each container from the top. Put the lids on the containers and let the jam rest for 30 minutes.At this point, you can begin eating the jam or refrigerate and use it within 3 weeks.

Leaving headspace will allow the jam to expand a little as it freezes.

Freeze the blackberry jam for up to 1 year. Label each container so you know what’s in it and remember to put the date on it. Place the sealed containers of jam in the freezer and use them within 1 year.[11]To thaw the blackberry jam, transfer a frozen container to the refrigerator the day before you plan to use the jam.

Avoid thawing frozen containers of jam at room temperature, especially if you used glass containers.

In order for the jam to set up properly, don’t double or triple the recipe. If you want to make more jam, make it in batches.

Sugar acts as a preservative in jam, so avoid cutting back on the sugar in your jam recipe.

Check the seal on any jar of jam that you’ve stored. It should hold firmly to the jar without bulging out.

EditThings You’ll Need
EditClassic Blackberry Jam
Measuring cups and spoons

Storage containers


Potato masher or wooden spoon



Large, non-reactive pot

Fine mesh strainer, optional

EditNo-Cook Freezer Jam
Measuring cups and spoons

Storage containers


Potato masher or food processor



Fine mesh strainer, optional

EditRelated wikiHows
Make Simple and Fresh Strawberry Jam

Make Orange Marmalade

Make Red Raspberry Jam

Make Banana Jam or Jelly

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Today in History for 6th April 2019

Historical Events

1664 – France and Saxony sign alliance
1782 – Rama I succeeds King Taksin of Siam (modern day Thailand), who is overthrown in a coup d’état
1916 – German parliament approves unrestricted submarine warfare
1955 – US performs nuclear test at Nevada Test Site
1968 – Gas and gunpowder explosions at sporting goods store, downtown Richmond, Indiana, kills 41 and injures more than 150
1987 – Al Campanis appears on Niteline saying blacks may not be equiped to be in baseball management, sparking a racial controversy

More Historical Events »

Famous Birthdays

1752 – Johann Friedrich Kranz, composer
1947 – Jan-Kees Wiebenga, Dutch politician (VVD), born in Haarlem, Netherlands
1947 – John Ratzenberger, American actor (Cliff Clavin in Cheers), born in Bridgeport, Connecticut
1957 – Maurizio Damilano, Italian speed walker (30K World Record)
1969 – Paul Rudd, American actor (Clueless, The 40-Year-Old Virgin), born in Passaic, New Jersey
1973 – Gina Yashere, English comedian

More Famous Birthdays »

Famous Deaths

1252 – Peter of Verona, [Peter Martyr], Italian inquisitor/st, dies at 45
1489 – Hans Waldmann, Swiss military/mayor (Zurich), beheaded
1551 – Joachim Vadianus, Swiss physician/mayor of Sankt Gallen, dies at 66
1605 – John Stow, English historian (Survey of London), dies
2005 – Rainier III, Prince of Monaco (1949-2005), dies at 81
2010 – Corin Redgrave, British actor and political activist (b. 1939)

More Famous Deaths »

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How to Drink Coffee Without Staining Teeth

If your teeth are looking a little yellow from coffee stains, you can take steps to have a brighter smile! While slowing down your coffee consumption is always an option, you can also do things to mitigate the effects. Also, make sure you’re caring for your teeth properly, as that will keep stains from building up as much. You can also try whitening your teeth at home to deal with the results of drinking too much coffee.

EditMinimizing the Effects of the Coffee
Add a splash of milk to your coffee. Half and half or milk can make your coffee tastier, but it can also reduce the stain-causing effects a bit, too. It doesn’t take much to benefit from this technique. Just tip a small splash into your coffee.[1]
Also, the casein in milk helps prevent staining.[2]
In part, this makes coffee less acidic. Acid can make you more vulnerable to stains. Non-dairy creamers and plant-milk may help make it less acidic, but they don’t contain the casein milk does.

Drink your coffee through a straw. You may already do this with iced coffee, but you should try it with your hot coffee, too. A straw keeps the coffee from getting on your teeth as much, reducing the staining effect. Plus, it keeps it away from your front teeth, where you’ll notice the discoloration the most.[3]
If you’re worried about throwing away all those disposable straws, opt for reusable versions in metal or sturdier plastic.

Rinse your mouth out with water after you drink coffee. Drink some water and swish it around in your mouth for at least 30 seconds. Once you’re done swishing, you can swallow the water or spit it out depending on your preferences.[4]
The water will remove the remnants of the coffee so it can’t stick around and stain your teeth more.

Pop a piece of sugarless gum after drinking coffee to reduce the acid. When you’re done with your coffee, reach for the gum. Chew it for at least 20 minutes or so to decrease the amount of acid you have floating around.[5]
Neutralizing the acid will make you less susceptible to coffee’s staining effects.[6]

EditCaring for Your Teeth
Brush your teeth at least twice a day. Brushing won’t prevent staining completely, but it will help keep it to a minimum. Make sure you’re following your dentist’s recommendations for brushing, brushing your teeth at least twice a day. When brushing, set the brush at a 45-degree angle to your gums and try to brush for at least 2 minutes each time. Make sure you’re brushing all the surfaces of your teeth.[7]
Plus, the plaque that builds up on your teeth will show stains more readily than your teeth enamel. Try switching to an electric toothbrush, as it tends to remove more plaque than just regular brushing.[8]
Avoid brushing too aggressively, as that can wear down your enamel.

Wait at least 30 minutes to brush after drinking coffee. If you brush too soon, you may be scrubbing the acid into your teeth, making its wearing effect worse.[9]

Floss once a day to remove plaque. Pull out a length of dental floss that’s about long. Wrap a small part of it around your middle finger on 1 hand and the rest around your middle finger on the other hand; wrap more around one finger than the other. Leave enough in between your fingers to floss with, about . Use your index fingers and thumbs to guide the floss into the spaces between your teeth. Rub it back and forth, making sure you don’t push it too hard into your gums. Make a “C” shape around the teeth in each direction as you move up and down.[10]
As the floss gets dirty, pull out some that’s clean from the middle finger that’s holding the length of thread. Wrap the dirty part around your other finger.

Flossing helps remove the plaque that will show stains. You can get whitening floss, but it likely won’t provide much more benefit than just using regular floss.

Rinse with an antibacterial mouthwash before or after brushing. This type of mouthwash helps you avoid the buildup of plaque. Because plaque is more likely to show stains, it’s a good idea to reduce buildup as much as you can. Try swishing with it twice a day, such as after breakfast and lunch.[11]

See your dentist for a cleaning every 6 months. Dental cleanings won’t remove stains completely on their own. However, they may help keep stains from building up over time. You should see your dentist twice a year for cleanings, which will also help prevent the buildup of plaque on your teeth.[12]

Talk to your dentist about professional whitening services. The dentist will evaluate your stains and make a recommendation about the best options for your situation. They may recommend products like trays that cover your teeth with whitening solutions for specific periods of time or bleaching solutions that are activated with light.[13]
You can also try a procedure like dental bonding, which basically covers your tooth in a lighter colored material that’s bonded to the tooth with light.

Veneers are another option, which is essentially a shell that goes in front of your teeth to make them look whiter.[14]

EditWhitening Your Teeth at Home
Try a whitening toothpaste to whiten over time. Whitening toothpastes aren’t as effective as other whitening products, but they can help. However, replacing your regular toothpaste with a whitening one is an easy swap.[15]
Look for ones that use peroxides for whitening rather than abrasives. Abrasive toothpastes can wear down your enamel over time, making your problems worse.

You can combine these toothpastes with whitening mouthwashes for a stronger effect.

Apply whitening strips for a more effective whitener. With these products, you peel off the strips and place them over your teeth. Depending on the product, you may leave them on for up to an hour before peeling them off.[16]
Always read the instructions on the products before applying the strips. Also, read the directions to learn how often you can use them; often, you should only apply them for 5 minutes a day.

Don’t brush your teeth before using the strips, as they’ll stick to your teeth better.

Similar options include whitening mouth trays and gels that you apply to your teeth.

Spread mashed strawberries on your teeth for a natural solution. Some people have luck using strawberries to whiten their teeth, which have a natural enzyme that may help. Mash a bit up to rub into your teeth and leave it there for at least 5 minutes before you rinse.[17]
Brush your teeth after using this treatment.

Don’t use this treatment more than once a day.

Add crunchy fruits and veggies to your diet. Eat produce like apples, carrots, bell peppers, and celery. The hard produce will help remove plaque. Plus, they increase your saliva production, which washes away plaque and bacteria.[18]
Keep plaque in your mouth to a minimum to help decrease the appearance of stains.

Use baking soda when brushing for mild abrasion. Either pick a toothpaste with baking soda or add a little to your toothbrush before your toothpaste. Brush as you normally would and then rinse it out.[19]
Picking a toothpaste with baking soda will taste better. Baking soda is very salty.

Baking soda is mildly abrasive. It helps to remove stains, but it’s not so abrasive that it wears down your enamel.

Always talk to your dentist, but typically, you can use this technique every time you brush.

Avoid trying to mix your own hydrogen peroxide whitening liquid at home. You need a very low concentration (3.6%), which is difficult to mix, and using a mouth guard to hold it on could irritate your gums. Instead, buy a whitening gel, which is pre-mixed.[20]
Skip abrasive DIY whiteners, such as charcoal, as they could remove your enamel.[21]
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