Thumb Score: +21

Axio Supply via Amazon [amazon.com] has Pure Original Ingredients Citric Acid on sale for $19.94 – $9.97 BOGO promotion – 5% off when you checkout via Subscribe & Save = $8.97. Shipping is free w/ Prime or on orders $35+.

Must add 2 bags to cart and check out with subscribe & save.

The product page says it’s food grade.

The last FP deal on citric acid was $2.38/lb, this is $2.24/lb