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Double Boiler: Two Tinned Copper Pans, One Hung in the Other
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14. uMfumfu 2026NO
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Double Boiler: Two Tinned Copper Pans, One Hung in the Other

A double boiler, or bain-marie, sets a smaller pan in a larger one of water, so what is inside cannot get hotter than boiling water: chocolate melts without splitting and egg sauces do not curdle. Raise two copper pans as for the saucepan, give the inner one a rolled shoulder that hangs on the outer rim, rivet on handles and tin both. The picture: copper cookware in the kitchen of Bourbilly Castle.
Osezingeni eliphezulu
Two days

Imiyalelo

1

Raise the outer pan

Raise, rivet and tin a saucepan about 22 cm across as in the saucepan blueprint; this is the outer pan for the water.
2

Raise the inner pan

Raise a second, narrower pan, about 18 cm across, from a copper disc over the stake, annealing whenever it stiffens.

Izinto zokwakha zalesi sinyathelo:

Ishidi LethusiIshidi Lethusi1 ucezu

Amathuluzi adingekayo:

Isikeli sensimbiIsikeli sensimbi
Ikhampasi yamachopho amabiliIkhampasi yamachopho amabili
Isando sokukhuphulaIsando sokukhuphula
Isando SokhuniIsando Sokhuni
Insika yokubumbaInsika yokubumba
Iziko lomkhandi wensimbiIziko lomkhandi wensimbi
3

Roll the shoulder

Stretch the inner pan's rim outward into a shoulder wide enough to rest on the outer pan's rim, so it hangs with a gap below it for water.

Amathuluzi adingekayo:

Insika yokubumbaInsika yokubumba
Isando SokhuniIsando Sokhuni
Isando esinekhanda elimise okwesikhonkwaneIsando esinekhanda elimise okwesikhonkwane
4

Handle and tin

Forge and rivet an iron handle to the inner pan, then tin its inside with tin, sal ammoniac and rosin wiped with tow, as for the saucepan.

Izinto zokwakha zalesi sinyathelo:

Induku yensimbi ekhandiweInduku yensimbi ekhandiwe0.3 m
Izipikili zethusiIzipikili zethusi3 izicucu
Ingqimba ye-tinIngqimba ye-tin0.05 kg
I-ammonium chloride (NH₄Cl)I-ammonium chloride (NH₄Cl)0.01 kg
I-rosin yephayiniI-rosin yephayini0.01 kg
Imicu emifushane yelineniImicu emifushane yelineni0.01 kg

Amathuluzi adingekayo:

Ibhola lesandlaIbhola lesandla
Isando esinekhanda elimise okwesikhonkwaneIsando esinekhanda elimise okwesikhonkwane
Iziko lomkhandi wensimbiIziko lomkhandi wensimbi
Amagilavu Amelana NokushisaAmagilavu Amelana Nokushisa
5

Try it

Put water in the outer pan, hang the inner one in it, and heat: the water should simmer without touching the shoulder or splashing into the inner pan.

Izinto zokwakha zalesi sinyathelo:

AmanziAmanzi2 amalitha
6

Water between the pans

Ilayisha incwadi ye-Jupyter…

Izinto

8

Amathuluzi Adingekayo

9

Ama-blueprint ahlobene

Lama-blueprint abelana ngolwazi — amasu, izinto noma izimiso

CC0 Isizinda Somphakathi

Le blueprint ikhishwe ngaphansi kwe-CC0. Ukhululekile ukukopisha, ukuguqula, ukusabalalisa, nokusebenzisa ngaphandle kwemvume.

Sekela uMenzi ngokuthenga imikhiqizo nge-Blueprint yabo IKhomishane Yomenzi kumiswe ngabathengisi, noma dala inguqulo entsha yale Blueprint bese uyifaka njengoxhumaniso ku-Blueprint yakho ukuze wabelane ngemali engenayo.

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