Principles of Food Preservation
Principles of Food Preservation covers fundamentals of post-harvest, thermal, refrigeration, freezing, water activity, chemical, and nonthermal preservation methods.
Summary
Historical reviews of Rich Hartel: Homework is very helpful for exams, and tests contain no surprises if students pay attention to homework material. The major is described as hard with heavy credit loads.
Grade history
↗letter grades
All recorded terms · compare terms & instructors
Prerequisites
Course mapMICROBIO/FOOD SCI 325,FOOD SCI 410, and 440
“Used by” includes alternatives; linked courses may have other requirements. This is a best-effort interpretation; check the catalog requirements above.
Prerequisite text tree
Professors
Fall 2026No instructors recorded for this selection.
Historical instructors & teaching patterns
Historical reviews of Brad Bolling: Brad Bolling provides online notes and uses helpful homework for exam preparation, engaging students through discussion. However, his lecture style requires some adjustment to get used to.
BRADLEY BOLLING is recorded teaching in Spring 2016, Spring 2017, Spring 2018, Spring 2019, Spring 2020, Spring 2022, Spring 2023, Spring 2024, Spring 2025, Spring 2026. Recorded history may be incomplete and does not establish a future schedule.
RICHARD HARTEL is recorded teaching in Spring 2010, Spring 2011, Spring 2012, Spring 2013, Spring 2014, Spring 2015, Spring 2018, Spring 2019, Spring 2020, Spring 2022, Spring 2023, Spring 2024, Spring 2025, Spring 2026. Recorded history may be incomplete and does not establish a future schedule.
Recorded history may be incomplete and does not establish a future schedule.
Calendar & sections
Fall 2026Schedule loads here as you scroll.
| Section | Mode | Enrolled / capacity | Waitlist |
|---|
Times are Central. Select a meeting for details; export includes recorded dates for the selected sections.
Meeting source records
No records available.
Student experience
the class
Historical reviews describe a co-taught course where Brad Bolling offers engaging lectures and helpful homework, while Rich Hartel provides predictable exams and deep subject knowledge.
Recent recorded grades — Spring 2024: 3.00 GPA, 33.3% A/AB (n=12 letter grades); Spring 2025: 2.77 GPA, 27.3% A/AB (n=22 letter grades); Spring 2026: 2.98 GPA, 41.7% A/AB (n=24 letter grades).
difficulty & workload
Historical reviews of Rich Hartel: Homework is very helpful for exams, and tests contain no surprises if students pay attention to homework material. The major is described as hard with heavy credit loads.
Historical reviews of Rich Hartel: Recent reviews of Rich Hartel report dismissive, abrupt, and condescending communication that made students feel uncomfortable and discouraged from asking questions.
Topics
Skills
Grades
Latest available · Spring 2026— not enough history to project Fall 2026.
Grade distribution · % of letter grades
Grades over time
Through Spring 2026
More grade details Grade mix, volume & source data
Not enough comparable courses for Fall 2026 in UW–Madison.
Sources & history
Catalog & offerings
Descriptions, prerequisites, and recorded course offerings.
Catalog observation history
Observations at scan time; dates do not imply when a catalog change took effect.
Selected offering source records
No offering records for the selected term.
Raw records
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Student reviews
Original comments behind the course and instructor summaries.
Read original reviews
Grade history
Recorded grade distributions by term, section, and instructor.
Explore recorded gradesModel outputs & technical records
LLM outputs across runs
Full model traces
Recorded model configuration, reasoning, and tool conversations.
Model & dataset provenance
{
"model": "nvidia/Qwen3.6-35B-A3B-NVFP4",
"model_revision": "1355db6a052410cfd62085d94b58866fd0f2c3c5",
"task_version": "14",
"output_id": "f99a2de9a9a732e500ae6659b2054e6c979bc86b9356ce3b4180542d34af3eaa",
"requirements_status": "valid",
"dataset_revision": "e243353dcb7d79b7247ced91d69443ef4c2a6349",
"observed_at": "2026-09-07 15:55:43.033547+00:00"
}