Gear guide · 12 products

Syrup hydrometers and test cups for maple sugaring

Maple-specific hydrometer calibrated at 60 F with Brix (and often Baume) scale and red hot/cold test lines; the lines are set for Vermont's 66.9 Brix, each ~0.5 Brix wide - read them knowing that.

Our pick

Top pick: Smoky Lake Beginner Density Kit ($58.10) - stated 60 F calibration, dual scale, lead-free ballast, welded stainless cup with leak warranty
Budget pick: Bascom Short Syrup Hydrometer ($22.50) + Short Cup ($37.00) when in stock, or Tap My Trees hydrometer ($22.72) + cup ($25.43); Criteria: 60 F calibration, 45-75 Brix range with hot/cold lines, cup geometry, lead-free ballast, VT approval if selling in VT. The $19.99 Amazon kit omits calibration temperature.; What would change it: Vermont residents must buy the VT-tested version ($31.99 TMT; Bascom long hydrometer $23 is VT inspected).

Disclosure

Gear pages contain affiliate links: if you buy through them we may earn a commission at no extra cost to you. Nobody on this site has tested these products; recommendations rest on manufacturer specifications, extension-service guidance, price and availability on the dates shown.

What matters

How to judge syrup hydrometers and test cups

Each criterion names the extension or manual source it comes from; 'synthesis' marks our own reasoning.

1
Maple-specific hydrometer calibrated at 60 F with Brix (and often Baume) scale and red hot/cold test lines; the lines are set for Vermont's 66.9 Brix, each ~0.5 Brix wide - read them knowing that.
NAMSPM2 p.149, p.165-167; UVM-HYDRO; LEG-EVIDENCE 4.11-4.14 · verified
2
Hot test = desired Brix minus 8 at ~211 F (58 for 66.0); otherwise correct +0.05 Brix per F above 60 F; a Murphy-type compensating cup replaces the chart but not the hydrometer.
NAMSPM2 p.149, p.166; Bascom Murphy cup page · verified
3
Cup nearly as long as the hydrometer and 1.5x as wide; fill to the top, float foam off, lower gently.
NAMSPM2 p.167 · verified
4
Keep a spare (glass breaks); check a new one against the old or a refractometer; scale paper can shift (1/8 in = 1 Brix); clean after every use.
NAMSPM2 p.167-168 · verified
5
Lead-free ballast is a verifiable plus (hydrometers sit in food).
Smoky Lake Gold Series page ('Weighted with a food grade alloy. NO LEAD!') · verified (maker claim)
6
Vermont requires state-tested hydrometers.
NAMSPM2 p.167 fn 59; Tap My Trees VT-tested listing · verified

Products

12 syrup hydrometers and test cups we looked at

Specs are from the maker's or dealer's page; 'unknown' means it wasn't stated. Prices are the dealer's on the date shown; Amazon prices aren't shown here because Amazon's rules require live data.

unbranded (Bascom)

Short Sap Hydrometer (1-12 Brix, calibrated 38 F, Vermont inspected)

scale:: 1-12 Bx
calibration:: 38 F

⚠ Sap, not syrup

$16at bascommaple.com, 2026-10-05

Suits: Serious backyard, Small sugarhouse

View at bascommaple.com →

Verified on the page: name, price, scale, calibration

AYUSEB

Maple Syrup Hydrometer Test Cup Kit (AYUSEB, Amazon)

cup:: stainless, 8 in tall x 1 in diameter, finger loop
scales:: Baume and Brix (ranges not in bullets read)

⚠ Calibration temperature not stated in bullets read; 1 in cup

Price on Amazon

Suits: First season

View at amazon.com →

Verified on the page: name, price, cup

unbranded (Bascom)

Short Syrup Hydrometer (9-3/8 in; 25-40 Baume / 45-75 Brix; red hot & cold lines)

length:: 9-3/8 in
scales:: 25-40 Be, 45-75 Bx
lines:: hot and cold test

⚠ Out of stock when read

$22.50at bascommaple.com, 2026-10-05

Suits: First season, Serious backyard, Small sugarhouse

View at bascommaple.com →

Verified on the page: name, price, length, scales

Tap My Trees

Maple Syrup Hydrometer (9-1/2 in; Baume 25-40, Brix 45-75)

length:: 9.5 in
scales:: 25-40 Be, 45-75 Bx

⚠ Page states it does not meet Vermont certification

$22.72at tapmytrees.com, 2026-10-05

Suits: First season, Serious backyard

View at tapmytrees.com →

Verified on the page: name, price, length, scales

unbranded (Bascom)

Long Syrup Hydrometer (12 in; 50-71 Brix; Vermont inspected)

length:: 12 in
scale:: 50-71 Bx
approval:: State of Vermont inspected

⚠ Needs the long cup ($45)

$23at bascommaple.com, 2026-10-05

Suits: Serious backyard, Small sugarhouse

View at bascommaple.com →

Verified on the page: name, price, length, scale, approval

Tap My Trees

Hydrometer Test Cup (stainless, 8 in tall x 1 in diameter)

height:: 8 in
diameter:: 1 in
material:: stainless steel

⚠ 1 in diameter is narrower than NAMSPM's '1.5x as wide as the hydrometer' guidance

$25.43at tapmytrees.com, 2026-10-05

Suits: First season, Serious backyard

View at tapmytrees.com →

Verified on the page: name, price, height, diameter

Tap My Trees

Maple Syrup Hydrometer - VT State Tested

length:: 9.5 in
scales:: 25-40 Be, 45-75 Bx
approval:: tested by VT Agency of Agriculture, Food & Markets

$31.99at tapmytrees.com, 2026-10-05

Suits: Serious backyard, Small sugarhouse

View at tapmytrees.com →

Verified on the page: name, price, approval

unbranded (Bascom)

Short Hydrometer Cup (2 in dia x 8 in)

diameter:: 2 in
height:: 8 in
material:: not stated

$37at bascommaple.com, 2026-10-05

Suits: First season, Serious backyard

View at bascommaple.com →

Verified on the page: name, price, diameter, height

Smoky Lake Maple Products

Gold Series Syrup Hydrometer (45-75 Brix / 25-40 Baume at 60 F; lead-free ballast)

scales:: 45-75 Bx and 25-40 Be at 60 F
ballast:: 'food grade alloy. NO LEAD!'

$40at smokylakemaple.com, 2026-10-05

Suits: First season, Serious backyard, Small sugarhouse

View at smokylakemaple.com →

Verified on the page: name, price, scales, ballast

Smoky Lake Maple Products

Beginner Maple Syrup Density Kit (syrup hydrometer + TIG-welded test cup + chart)

scales:: 45-75 Bx / 25-40 Be, calibrated 60 F
cup:: TIG welded stainless, 'lifetime warranty against leaks'
includes:: instruction sheet and compensation chart

$58.10at smokylakemaple.com, 2026-10-05

Suits: First season, Serious backyard

View at smokylakemaple.com →

Verified on the page: name, price, scales, cup

Vermont Evaporator Company

Hydrometer Kit (stainless cup + densimeter + instructions)

includes:: stainless steel cup, 'densimeter', instructions

⚠ Scale range not stated

$123at vermontevaporator.com, 2026-10-05

Suits: First season, Serious backyard

View at vermontevaporator.com →

Verified on the page: name, price

Murphy (via Bascom; Smoky Lake lists $155.00)

9" Murphy Compensation Cup

function:: dial thermometer face re-marked with hydrometer readings per temperature; still needs a short syrup hydrometer

⚠ Out of stock at Bascom when read

$150at bascommaple.com, 2026-10-05

Suits: Serious backyard, Small sugarhouse

View at bascommaple.com →

Verified on the page: name, price, function

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