Five-gallon food grade buckets are a staple in many food storage pantries. When my family first began storing food, those buckets were a little intimidating! My wife complained they were difficult to open — buying Gamma Seal lids solved that problem — but the buckets were also very heavy.
Another issue with plastic buckets is whether or not they are actually food grade and that’s what I’d like to focus on here. It’s a topic that concerns me because not all plastic buckets are made from a material that is actually safe for storing food, and there is a lot of misinformation being spread on this subject.
One widespread rumor is that having the recycling number 2 in the small triangle on the bucket means it is food grade. This does not mean that it is food grade. It just refers to how the bucket needs to be recycled.
Another question I get on a regular basis has to do with lining buckets with mylar bags as a safe alternative in case the plastic isn’t officially food safe. To the best of my knowledge, this is correct, because the food only touches the mylar bag, which is made from safe material.
What is a food-grade bucket?
The difference between food grade and non-food grade is the types of dyes used for coloring and the type of chemicals used to release the buckets from the molds. It has nothing to do with the sanitary conditions under which they are made.
The problem I have with non-food grade buckets is that in the future you have no idea what that bucket will be used for. Once you’ve used up the stored food inside, someone may decide to use it for storing fresh produce, brining, processing olives, or carrying water and may not think as to whether or not the container is safe for those purposes.
I don’t know what affect the chemicals and dyes might have on my family or me. For instance, the salt in brining may leach the chemicals out. I just prefer not to take the chance.
Where to find food grade buckets
Food grade buckets are easy to find and often can be obtained for free. Check with your local bakeries and supermarkets first. They often will save them and give them to you for nothing. The buckets often are not marked as food grade, but it’s almost certain they have been used for that purpose. When we obtained about 20 buckets from a grocery store bakery in Phoenix, they had been used to store pastry fillings and frosting for cakes. (They smelled really good!)
The store you purchase them from should tell you if there are food-grade or if they contained food products. Most food-grade buckets I’ve purchased and have gotten for free are white. If you have any doubt, you may be able to locate the name of the manufacturer on the bucket itself and give them a call. When I did this, they were very helpful and provided me with the information I needed.
I’ve also found food grade buckets at Walmart, and you’ll also find them on Amazon.
How to seal food in 5-gallon food-grade buckets
The other day I had to seal some popcorn and millet in mylar bags and five-gallon buckets. It is quite an easy process. First, open the mylar bag and put it in the bucket. Fill the mylar bag with your product to about two inches from the top of the bucket. You will notice that the bag is a lot taller than the bucket, rather than cut off the excess I seal it right on the edge. If I open, the bucket to rotate the food this leaves me plenty of material to reseal the bag.
I use an old two-foot metal hand level and an electric iron to seal the bags. The level is just the right length and thickness to make a good seal. I do not use my wife’s good iron since some mylar bags leave residue on the iron. I got the cheapest iron they had at Walmart. This keeps me out of trouble.
After putting in the oxygen absorbers, I set the level across the top of the bucket and lay the Mylar bag against it. I then iron it to make the seal. Leave a small opening in one corner. This permits you to squeeze out the excess air. You then make a diagonal seal across the corner.
Since I get my oxygen absorbers from the LDS cannery and they are the 300CC type, I always put in 5 absorbers. This article contains details about how to choose oxygen absorbers for different sizes of food storage containers. Fold the mylar bag into the bucket. Put the lid on the bucket, label it, and you are done.
How do you store your food-grade buckets?
Because filled buckets can be very, very heavy, try to not stack them directly on each other. Over time, and depending on where they are stored, this will cause the plastic to crack and introduce moisture, pests, and light into your stored food. All of these will cause your food to deteriorate more quickly.
If you must stack them, do not stack buckets more than 2 to 3 high. More than that, weight becomes a problem and the lids can break collapsing inward.
Food-grade buckets can be ideal for storing emergency food. Just be sure the plastic is actually “food grade”. If not, or if you aren’t sure, then use a mylar bag as a liner to provide double protection for your food. With oxygen absorbers and stored in a cool location, your food will be fresh 15-20 years from now.