Earthborn Elements Tapioca Starch 5 Gallon - Premium Tapioca Flour for Baking, Cooking & DIY Projects - Resealable Food Grade Bucket - Perfect for Gluten-Free Recipes, Thickening Sauces & Homemade Crafts

First off, forget using a sharp knife to open - I used snippers from my beading tools and it was so easy and safe to snip through the edge. The lids have a ring to keep them sealed well; I found it best to squeeze the rim on the tub to the lid and it seals nicely with minimal effort (I am a 110 pound petite gal).With a celiac in the family, I have a stash of different flours - most come in bags that have a ziplock front. This bags are awful - you can't scoop anything out of them and if you pour too much out, its tricky to get the excess back in the bag. I can use any size cup measure I want with these tubs, and I can easily see how much is left.The flour itself is fresh - use by date is easy to see. Also, good price per ounce - if you need to bake gluten free you know how expensive it can be so this is important. I wish I'd found these before I bought containers to transfer flours to, and for storing flour blends, but I'm sure I can come up with plenty of uses for these sturdy little buckets.