scummings

In the grande, if it is well attended to, the scummings are taken up as soon as they rise.

The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. P. L. Simmonds

The labouring horses, oxen, and mules, though almost constantly at work during this season, yet being indulged with plenty of the green tops of this noble plant, and some of the scummings from the boiling-house, improve more than at any one period of the year.

A General History and Collection of Voyages and Travels — Volume 13 Robert Kerr 1784

The careful wife of an industrious Hampshire labourer obtains all her fat for nothing; for she saves the scummings of her bacon-pot for this use; and, if the grease abounds with salt, she causes the salt to precipitate to the bottom, by setting the scummings in a warm oven.

The Natural History of Selborne, Vol. 2 Gilbert White 1756

These crickets are not only very thrifty, but very voracious; for they will eat the scummings of pots, and yeast, salt, and crumbs of bread, and any kitchen offal or sweepings.

The Natural History of Selborne, Vol. 2 Gilbert White 1756