Oak Aging Calculator

Calculate oak-to-wine surface area ratio and extraction intensity for barrels, staves, or chips. Compare alternative oak formats to standard barrel aging.

Inputs

Oak Format

Wine Volume

gal

Oak Amount

Tab to move between fields

Results

Surface Area Ratio

101.3 cm²/L

Barrel-Equivalent Intensity

99%

Oak FormatStandard Barrel (225 L)

Total Oak Surface Area23,000 cm²

Extraction Intensity (0-10)10

Recommended Contact Time1 months

How to Use This Calculator

Enter Oak Format, Wine Volume, and Oak Amount.
Review Surface Area Ratio (cm²/L) and Barrel-Equivalent Intensity (%).
Use Oak Format and Total Oak Surface Area (cm²) to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Wine Volume

Wine Volume	Surface Area Ratio	Barrel-Equivalent Intensity
10,001	0.6 cm²/L	1%
35,001	0.2 cm²/L	0%
65,000	0.1 cm²/L	0%
90,000	0.1 cm²/L	0%

What each input means

Oak Format: Oak vessel type: 1 = Standard Barrel (225 L/60 gal), 2 = Small Barrel (60 L/16 gal), 3 = Oak Staves, 4 = Oak Chips.
Wine Volume: Total wine volume in US gallons. A standard barrel holds 59.4 gallons (225 L). For staves/chips, this is your tank volume.
Oak Amount: Number of barrels, staves (individual boards), or pounds of chips depending on the selected oak format.

How this is calculated

Worked example, using the default values

Identify Input Parameters
Oak Format = 1, Wine Volume = 60, Oak Amount = 1 = 3 input(s) provided
Calculate Surface Area Ratio
Surface Area Ratio
101.3 = 101.3
Calculate Barrel-Equivalent Intensity
Barrel-Equivalent Intensity
99 = 99
Calculate Oak Format
Oak Format = vessel.name
Standard Barrel (225 L) = Standard Barrel (225 L)
Calculate Total Oak Surface Area
23000 = 23000

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