Stock From Scraps: Guide to Freezing, Simmering, and Choosing Better Bits

Across an online cooking discussion, the question was whether a container of frozen scraps can be built up over time and later turned into a useful pot of stock, including scraps that contain raw chicken. The most consistent replies treated this as a practical and common kitchen habit, provided the scraps are handled with some care and the stock is simmered, strained, and cooled for later use. The discussion did not present formal food safety guidance, but several contributors viewed cooking chicken in the stock as acceptable so long as it is cooked through. Just as importantly, the conversation focused on selection. Repeated advice suggested that some scraps work well, while others can make the result harsh, bitter, or awkward to manage.

A common workflow was to freeze scraps ahead of time and add them to a stock pot later. This was repeatedly described as a normal way to build stock over time. A recurring recommendation was to keep separate freezer bags or containers for different categories, especially vegetable scraps, chicken bones, and beef bones. That separation was favored both for easier handling and for making different kinds of stock rather than one mixed pot with less predictable flavor.

• Freeze scraps as they accumulate.
• Keep vegetable scraps separate from meat bones.
• Add frozen scraps directly to the pot if quick thawing is not needed.
• Simmer the stock, then strain and cool it for later use.

On raw chicken in the pot, views were somewhat cautious but leaned in one direction. One person questioned whether boiling raw chicken was unsafe, while multiple others said that boiling or simmering chicken in stock is simply cooking it, provided it cooks through. Because the discussion offered opinion rather than formal standards, the most careful reading is that many home cooks considered it workable, but the thread did not establish a firm safety guarantee beyond the idea that the chicken should be fully cooked during the simmer.

Which scraps to separate and which to avoid was one of the clearest themes. Several contributors recommended not treating stock as a place for every leftover piece. They suggested using scraps thoughtfully and adding some actual vegetables as well. Broccoli drew the strongest repeated caution, with several people saying it can make stock bitter, sulfurous, or otherwise unpleasant after a long simmer. There was one opposing view in favor of broccoli trunks, so this point is best understood as a strong preference rather than complete agreement. Onion scraps were generally welcomed in limited amounts, but too much onion skin was said to risk bitterness.

Scrap	Discussion trend
Vegetable scraps	Commonly used, but not as the only base
Chicken bones or scraps	Commonly kept separately for stock
Beef bones or scraps	Commonly kept separately for stock
Broccoli	Often discouraged, with one favorable view
Onion skins	Used cautiously, too much may be bitter

Handling the simmer also showed a few recurring habits. Skimming the surface was explicitly recommended, although one practical limitation was noted: when vegetables are floating in the pot, skimming scum can be harder. Simmering for a while, then straining and cooling, was a common approach. One weaker suggestion was to add chicken first, let the scum collect, skim it, and only then add vegetables. That idea appeared only lightly, so it reads as a possible method rather than a core recommendation.

The most reliable takeaway from the discussion is that making stock from scraps in the freezer is widely seen as practical and effective when done with a bit of organization. The strongest repeated advice was to separate scraps by type, add frozen scraps directly to the pot when convenient, simmer and strain the stock, and be selective about what goes in. Broccoli was the main caution, with onion skins used more carefully than casually. On the question of raw chicken, the discussion leaned toward it being workable if it is cooked through during simmering, but the comments stopped short of offering formal safety guidance. Overall, the thread supported a simple, selective approach rather than using every scrap indiscriminately.