日本語版

hot smoking

process / process-hot-smoking

熱燻

Smoking at a high temperature that cooks the flesh during part of the process.

On this page (6 sections)
  1. Overview
  2. Sources for this overview (2)
  3. Topic hubs
  4. Related entries (5)
  5. Sensory (2)
  6. How processing and cooking change it (3)
↑

Reading the bitterness

In a trial using Atlantic mackerel, fillets treated in 15% brine for 7 minutes were pre-dried at 30°C for 30 minutes, then held at 50°C for 30 minutes, and finally smoked while heating at 80°C. The final stage was 45 minutes for fresh fillets and 90 minutes for fillets thawed after 9 months of frozen storage. A trained panel of 6-11 recorded a strong smoky odor and smoky flavor, and rated bitterness and rancid taste as low. This is a comparison in which the raw-material history and the final heating time differed.

A separate trial using chub mackerel involved soaking fillets in 5% or 10% brine at 7°C for 1 hour, drying them at 40-55°C for 2 hours, and then hot-smoking them at 65°C for 40 minutes. Bitterness intensity, rated by a trained panel of 6 on a 0-4 point scale, was 0.0-0.3 for the NaCl-only and KCl 25%-replacement groups, and about 2-2.6 for the KCl 50%- and 75%-replacement groups. The hot-smoking conditions were the same across all groups, so this difference is a comparison of brine formulation, not a bitterness effect of hot smoking itself.

Sources for this overview

  1. Influence of hot-smoking on the stability of fresh and frozen-thawed deep-skinned Atlantic mackerel fillets during cold storage

    Carina Mascarenhas Fernandes; Hildur Inga Sveinsdóttir; Tumi Tómasson; Sigurjón Arason; María Gudjónsdóttir / 2024 / journal article / full text checked

    Checked for this overview: Supports the multi-stage process of 15% brine for 7 minutes and 30/50/80°C, with 45 minutes for fresh fillets and 90 minutes for thawed frozen fillets / Supports the line-scale evaluation by 6-11 assessors, the strong smoky odor and smoky flavor, the low bitterness and rancid taste, and the differences in conditions between groups

  2. The Development of Smoked Mackerel with Reduced Sodium Content

    Iga Rybicka; Marlene Silva; Amparo Gonçalves; Helena Oliveira; António Marques; Maria José Fernandes; Maria Helena Fernandes; Cristina Mateus Alfaia; Maria João Fraqueza; Maria Leonor Nunes / 2022 / journal article / full text checked

    Checked for this overview: Supports the 5%/10% brine, 7°C for 1 hour, drying at 40-55°C for 2 hours, hot smoking at 65°C for 40 minutes, and the 8 conditions / Supports, for a panel of 6 on a 0-4 scale, the bitterness of 0.0-0.3 and about 2-2.6 by KCl-replacement level, and the limitation that this is not the effect of hot smoking alone

Hypotheses and recipe candidates for this entry are on the Japanese page.

Structured claims — open a section to read each claim's confidence, evidence and limits

Sensory (2)

hot smoking shows the sensory response In multi-stage hot-smoked Atlantic mackerel, a strong smoky odor and smoky flavor were rated, and deterioration attributes such as bitterness and rancid taste were barely perceivedsupported

Scope: A trained panel of 6-11, 21 attributes, a 15cm unstructured line scale converted to 0-100, fresh and 9-month thawed-frozen fillets, stored at 1±0.6°C for up to 28 days

Note: This is not a finding of no bitterness at all, but a description that it was low for this sample and storage period. This is a trial combining salting, hot smoking, vacuum packing, and refrigeration.

6-11 assessors gave repeated ratings of 21 attributes on a line scale converted to 0-100. After hot smoking, a strong smoky odor and smoky flavor appeared, and deterioration attributes such as bitterness and rancid taste were barely perceived.
Limitations: The panel size varied from 6 to 11 across time points. The bitterness score was low but not zero, and the raw-material history and final heating time also differed between groups.
Source: Influence of hot-smoking on the stability of fresh and frozen-thawed deep-skinned Atlantic mackerel fillets during cold storage (Carina Mascarenhas Fernandes; Hildur Inga Sveinsdóttir; Tumi Tómasson; Sigurjón Arason; María Gudjónsdóttir, 2024) · full text checked
Show dataprocess-hot-smoking —has_sensory_response→ "In multi-stage hot-smoked Atlantic mackerel, a strong smoky odor and smoky flavor were rated, and deterioration attributes such as bitterness and rancid taste were barely perceived"
claim: clm-hot-smoking-mackerel-smoke-and-bitter-sensory / type: sensory / updated: 2026-09-16
hot smoking — observed together with: For chub mackerel under the same hot-smoking conditions, bitterness intensity was 0.0-0.3 for NaCl-only or KCl 25% replacement, and about 2-2.6 for KCl 50% or 75% replacementsupported

Scope: A trained panel of 6, on a 5-point intensity scale from 0 = none to 4 = extreme. 8 conditions combining 5% and 10% brine with NaCl/KCl ratios

Note: The bitterness difference is a comparison of brine-formulation conditions, not a result of hot smoking itself increasing or decreasing bitterness. There was no significant difference between the KCl 50% and 75% groups.

6 trained assessors rated bitterness on a 0-4 intensity scale. For both the 5% and 10% brines, bitterness was 0.0-0.3 for the NaCl-only and KCl 25%-replacement groups, and about 2-2.6 for the KCl 50%- and 75%-replacement groups, with no significant difference between the latter two.
Limitations: Bitterness here includes the effect of brine composition, and this is not a comparison of bitterness against an untreated control before hot smoking. This is a trained panel of 6, not consumer preference.
Source: The Development of Smoked Mackerel with Reduced Sodium Content (Iga Rybicka; Marlene Silva; Amparo Gonçalves; Helena Oliveira; António Marques; Maria José Fernandes; Maria Helena Fernandes; Cristina Mateus Alfaia; Maria João Fraqueza; Maria Leonor Nunes, 2022) · full text checked
Show dataprocess-hot-smoking —was_observed_with→ "For chub mackerel under the same hot-smoking conditions, bitterness intensity was 0.0-0.3 for NaCl-only or KCl 25% replacement, and about 2-2.6 for KCl 50% or 75% replacement"
claim: clm-hot-smoking-kcl-brine-bitterness / type: sensory / updated: 2026-09-16

How processing and cooking change it (3)

hot smoking is defined as Smoke treatment at 70–80°C that cooks the flesh during part of the process. Hot-smoked products require no additional cooking before consumption.contextual

Scope: Smoking fish (FAO Torry Advisory Note No.82).

Note: Same as above. By contrast, cold-smoked products (except smoked salmon) are described as requiring cooking before consumption.

Defines hot smoking as 「工程の一部で身を加熱調理する、70-80℃での燻煙処理」 (in translation: "smoke treatment at 70–80°C that cooks the flesh during part of the process") and says hot-smoked products require no additional cooking before consumption.
Limitations: A technical-guidance definition limited to smoking fish, not a legally binding regulatory definition.
Source: Hot Smoking of Fish (Torry Advisory Note No. 82) (Bannerman A McK) · full text checked
Show dataprocess-hot-smoking —is_defined_as→ "Smoke treatment at 70–80°C that cooks the flesh during part of the process. Hot-smoked products require no additional cooking before consumption."
claim: clm-hot-smoking-defined / type: processing / updated: 2026-09-02
hot smoking is documented as using A multi-stage process for Atlantic mackerel: treatment in 15% NaCl brine for 7 minutes, pre-drying at 30°C for 30 minutes, partial heating and smoking at 50°C for 30 minutes, and final smoking and heating at 80°Csupported

Scope: 80°C for 45 minutes for fresh fillets, and 80°C for 90 minutes for fillets thawed after 9 months of frozen storage. Smoke from beech sawdust, vacuum packing, storage at 1±0.6°C

Note: The duration of the final stage differs according to the raw material's freezing history. This is not a standard time that can be uniformly applied to fish species or equipment other than fresh and thawed-frozen fillets.

Atlantic mackerel was treated in 15% NaCl brine for 7 minutes, then dried, smoked, and heated in 3 stages using beech sawdust: 30°C for 30 minutes, 50°C for 30 minutes, and 80°C for 45 minutes (fresh) or 90 minutes (thawed frozen).
Limitations: This combines salting, multi-stage hot smoking, vacuum packing, and refrigeration. The fresh and thawed-frozen groups differ in final heating time.
Source: Influence of hot-smoking on the stability of fresh and frozen-thawed deep-skinned Atlantic mackerel fillets during cold storage (Carina Mascarenhas Fernandes; Hildur Inga Sveinsdóttir; Tumi Tómasson; Sigurjón Arason; María Gudjónsdóttir, 2024) · full text checked
Show dataprocess-hot-smoking —is_documented_using→ "A multi-stage process for Atlantic mackerel: treatment in 15% NaCl brine for 7 minutes, pre-drying at 30°C for 30 minutes, partial heating and smoking at 50°C for 30 minutes, and final smoking and heating at 80°C"
claim: clm-hot-smoking-mackerel-multistage-protocol / type: processing / updated: 2026-09-16
hot smoking is documented as using A trial process for chub mackerel: soaking in 5% or 10% brine at 7°C for 1 hour, drying at 40-55°C and 90-95% humidity for 2 hours, and then hot smoking at 65°C and 85% humidity for 40 minutessupported

Scope: 4 conditions of NaCl-to-KCl replacement (0, 25, 50, and 75%) for each brine, for 8 conditions in total. 6 fillets per condition

Note: This is a comparison varying brine concentration and salt-type ratio, with the hot-smoking conditions common to all groups. This is not a trial of liquid smoke or cold smoking.

48 chub mackerel fillets were assigned to 8 conditions (5% or 10% brine × KCl replacement of 0, 25, 50, or 75%) with 6 fillets each, soaked at 7°C for 1 hour, dried at 40-55°C for 2 hours, and hot-smoked at 65°C for 40 minutes.
Limitations: With 8 conditions comparing brine concentration and KCl ratio simultaneously, sensory differences cannot be attributed to hot smoking alone.
Source: The Development of Smoked Mackerel with Reduced Sodium Content (Iga Rybicka; Marlene Silva; Amparo Gonçalves; Helena Oliveira; António Marques; Maria José Fernandes; Maria Helena Fernandes; Cristina Mateus Alfaia; Maria João Fraqueza; Maria Leonor Nunes, 2022) · full text checked
Show dataprocess-hot-smoking —is_documented_using→ "A trial process for chub mackerel: soaking in 5% or 10% brine at 7°C for 1 hour, drying at 40-55°C and 90-95% humidity for 2 hours, and then hot smoking at 65°C and 85% humidity for 40 minutes"
claim: clm-hot-smoking-kcl-brine-protocol / type: processing / updated: 2026-09-16

↑ Top of page · ← Encyclopedia (English entries)