Living · 6 pages · 12 min
How starch behaves in a gravy
Granules swell in hot water, tangle, and hold the liquid.
When the purchase is complete, return to the original window. It will refresh.
From the opening
Starch thickens a gravy when its granules take up hot water, swell, and leak chains that tangle through the liquid. The spoon meets that network, not a pile of dry flour simply suspended in meat juices. The opening covers hot water swells the granules, roux and slurry keep them apart, and cooling lets amylose set further.
The rest of the brief — the later sections and the reading notes — opens after Stripe confirms payment.
Inside
- Hot water swells the granules
- Roux and slurry keep them apart
- Cooling lets amylose set further
- Acid and boiling can thin the gel
- Where the idea stops applying
- A distinction worth keeping
Sources
- Gelatinization of starch granules in a hot sauce
- Retrogradation and syneresis in cooled starch gels