How long does fresh juice last in mason jar in fridge?


Fresh juice is a delicious and nutritious drink that many people enjoy as part of a healthy diet. Juicing fruits and vegetables allows you to consume a concentrated dose of vitamins, minerals, and antioxidants. However, fresh juice only stays fresh for a limited period of time. The shelf life of fresh juice depends on how it is stored after juicing. One popular storage method is transferring the juice into mason jars and refrigerating it. But how long does fresh juice really last when properly stored this way?

In this article, we’ll provide a detailed overview of how long you can expect fresh juice in a mason jar in the fridge to remain safe and retain quality. We’ll discuss factors that affect juice shelf life, signs of spoiled juice to watch out for, and tips for maximizing freshness. Keep reading to learn everything you need to know about the shelf life of homemade juice!

Factors That Affect Juice Shelf Life

Several key factors impact how long fresh juice will keep in the refrigerator:

Type of Produce

Fruits and vegetables contain different amounts of natural enzymes, acidity levels, water content, and nutrients that affect microbial growth and oxidation rates. For example:

– Produce with higher water content like watermelon, cucumber, and celery juice spoils faster.
– Low-acid juices made from vegetables have a shorter shelf life than acidic fruit juices which inhibit bacterial growth.
– Juices containing produce that brown quickly when exposed to air (apples, pears) will deteriorate faster.

Blending vs. Juicing

Blending keeps more fiber but introduces oxygen that causes spoilage whereas juicing separates produce pulp and extends the shelf life.

Blending Juicing
  • Keeps fiber from produce
  • Oxidation occurs faster
  • Pulp separates and sinks
  • Shorter shelf life
  • Removes fiber and pulp
  • Less oxidation
  • No separation
  • Longer shelf life

Storage Container

The container you choose affects oxygen exposure. Mason jars are ideal since they are airtight. Other good options include:

– Glass bottles with lid
– Stainless steel bottles
– Storage bags designed for liquids

Avoid plastic containers which can leach chemicals into the juice over time.

Exposure to Light and Air

Light and air cause oxidation and nutrient breakdown. Limit exposure by:

– Filling containers to the very top
– Making sure lids are tightly sealed
– Storing in the fridge immediately after juicing

Storage Temperature

Cold temperatures slow the growth of bacteria and enzymes that cause spoilage. Refrigerate juice right away at 40°F or below.


Dirty juicers, utensils, and containers introduce harmful bacteria. Always wash and sanitize equipment thoroughly before juicing.


Adding preservatives like lemon juice, vitamin C, or citric acid helps limit oxidation and bacterial growth.

How Long Does Juice Last in the Fridge?

Assuming proper storage and refrigeration, here are the general guidelines for how long fresh juices will last:

Juice Type Shelf Life in Fridge
Fruit and vegetable juice blends 48 hours
100% fruit juices 3 days
Beet, celery, carrot, ginger, greens 24 hours
Watermelon, cucumber 24 hours

Juices containing only fruits like apple, orange, grapefruit, or lemon juice will keep for 3-5 days when refrigerated.

Vegetable juices have a shorter shelf life of only 1-2 days.

Juice blends fall in the middle at 2-3 days.

Keep in mind these timeframes are for maximum quality. Juices may still be safe to drink after the peak freshness has declined.

Signs Juice Has Spoiled

Check your juice periodically for the following signs that it is past its prime and should be discarded:

– Change in color
– Cloudiness
– Unpleasant sour smell
– Mold
– Fizzing or bubbling
– Undesirable changes in taste

If you notice any of these warning signs, err on the side of caution and throw the juice out. Consuming spoiled juice can cause unpleasant symptoms or foodborne illness.

Does Pulp Extend or Reduce Shelf Life?

Juice pulp provides fiber and nutrients but also contains enzymes that speed up spoilage. Removing pulp helps juice last 1-2 days longer. However, some prefer juice with pulp for the added benefits. Here’s a comparison:

Juice with Pulp Juice without Pulp
  • Higher fiber content
  • More enzymes = shorter shelf life
  • Can become unstable and separate more
  • 2-3 days max shelf life
  • Lower fiber content
  • Fewer enzymes = longer shelf life
  • More stable, less separation
  • 4-5 days max shelf life

For maximum freshness, store pulp-free juices. But pulp offers extra nutritional benefits so you can keep it too. Just be sure to drink within a couple days.

Tips to Extend Juice Shelf Life

Follow these best practices when preparing and storing fresh juices:

Wash Produce Thoroughly

Clean fruits and veggies well before juicing to remove dirt, pesticides, and microbes.

Use Clean Equipment

Sanitize your juicer, knives, cutting boards, jars, and other items before use.

Juice in Small Batches

Don’t make more juice than you’ll drink within a couple days.

Fill Jars to the Top

Leave only 1/4 inch of headspace or less to minimize oxygen exposure.

Seal Jars Properly

Ensure lids are tightly closed to prevent leaks.

Add Lemon Juice

The acidity helps prevent bacterial growth – add 1 tbsp per 16 oz.

Store in Coldest Part of Fridge

Keep juice jugs on a lower shelf away from the door where temperature fluctuates.

Never Store at Room Temp

Heat accelerates spoilage – refrigerate immediately after juicing.

Following these procedures carefully will help extend the shelf life of your homemade juices by several days.

Can You Freeze Juice in Mason Jars?

Yes, mason jars are ideal for freezer storage. To freeze:

– Leave 1-inch headspace to allow for expansion.
– Seal lids tightly.
– Freeze for up to 8 months.

Frozen juice retains more nutrients but may separate or become watery after thawing. Shake well before drinking thawed juice.


When stored properly in airtight mason jars in the refrigerator, fresh fruit and vegetable juices can last from 1-5 days. Factors like the produce used, juicing method, and exposure to light/air impact shelf life. While juices may still be safe beyond peak quality, it’s best to discard them once signs of spoilage appear. Following the guidelines above will help you maximize the freshness window so you can enjoy all the nutritional benefits of homemade juice. Be sure to drink juices within the first 1-2 days for absolute best quality and flavor.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *