Eucalyptus leaf (dried)

David Fisher, The Complete Photo Guide to Soap Making (Creative Publishing International, 2018), p. 19: exfoliants, "Start with 1 to 2 teaspoons per 1 pound (454 g) of oils or soap base"; calendula petals "retain their yellow color nicely"; coffee grounds, "scrubbiness is determined by the coffee’s grind"; "Citrus peel (dried and ground): offers a medium scrub; add at trace"; cornmeal, "medium scrub; premix with oil and add at trace"; eucalyptus leaves, "a medium scrub, especially if not very finely ground"; lavender buds "will turn brown in cold process soap and look like mouse droppings; gently grind them first to avoid this"; loofah, "light to medium scrub"; mint is "prone to bleeding; steep as a tea first"; oatmeal, "like coffee, the scrubbiness is determined by how ground it is"; poppy seeds, "light to medium scrub"; pumice, "heavy-duty scrub; great for mechanic’s or gardener’s hand soaps"; rose hips, "medium to high scrub; also adds natural color"; rose petals "turn black in cold process soap"; sandalwood powder "gives a medium to high scrub, and makes a lovely purple color"; "ground stone fruit pits (apricots, peaches) and berry seeds (ground or whole) give a medium to high scrub factor"; walnut shells, "a nice medium scrub and a lovely medium brown color".

Voyageur Soap & Candle, botanical product pages, "Approx. Cups/ Lb": lavender flowers 17; calendula petals 44; chamomile flowers, whole, 21; red and pink rose petals and buds 22; peppermint leaf, cut and sifted, 15; eucalyptus leaf, cut and sifted, 7; sage, ground, 8; kelp powder (Ascophyllum nodosum) 3; black walnut hulls powder 4. Peppermint and eucalyptus leaves "can be sprinkled into the soap mixture when at a light trace to create a speckled effect"; comfrey leaf goes "into the lye water to create even color distribution which produces a natural green bar, or sprinkle it into the soap mixture when at a light trace". Density = 453.6 g ÷ (cups × 236.6 mL).

David Fisher, The Complete Photo Guide to Soap Making (Creative Publishing International, 2018), p. 86: "most all flower petals, except calendula, will turn black when they come into contact with lye"; "Herbs such as rosemary, leaves such as eucalyptus and patchouli, citrus peels, ground rose hips, and teas such as spearmint and peppermint, can all be used to make beautiful soaps. But, like flower petals, they turn brown or black. Most dried leaves, especially rosemary and eucalyptus, need to be ground finely or they can be too scratchy".

Wholesale Supplies Plus, dried lavender, calendula, chamomile, rose, sage and eucalyptus: "Note: Some herbs and botanicals will brown overtime when exposed to hot liquids and high pH." On lavender buds: they "have a tendency to turn brown when mixed into soap of any kind. We have found that they are best used as decoration on the tops of a soap loaf."